JP3057002U - Telephone pole band and antenna mounting structure - Google Patents

Abstract

(57) [Summary] [PROBLEMS] A power pole can be installed in a gap between a power pole and the power pole without loosening an already installed power pole. A front and rear band (6, 7) in which a strip is constituted by a main body (3) and fastening pieces continuously provided on both sides of the main body (3).
Is disposed before and after the power pole 40, and the power strip 1 for tightening and fixing the tightening pieces with the tightening bolts 8 and the nuts 9. The main body 3 has approximately half 3a in the longitudinal direction on the outer surface of the power pole. It is formed in the shape of a substantially quarter circle that abuts, and the remaining half is about 3b
Is tangentially extended so as to be at an acute angle with respect to the center line of the substantially quarter circle, and a long hole 11 is formed at an appropriate position on the whole. Square hole 1 with 1 fastening piece 4
3 and a reinforcing rib 12 at a connection portion with the main body 3,
The opposite side is the second fastening piece 5 and has a square hole 13.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a telephone pole band and an antenna mounting structure. This pole for power poles is used not only for mounting antennas, but also for suspending and suspending telecommunications wires and other such cables to poles. The antenna here is an antenna used in a base station of a PHS (simplified mobile phone), and is attached to a telephone pole by an antenna mounting structure using the telephone pole band.

[0002]

[Prior art]

 Usually, the pole for power poles is used not only for mounting antennas but also for hanging and retaining suspension wires such as communication lines on poles. A conventional power pole band is a pair of front and rear bands that are integrally provided with a fastening piece on an arc body formed using one semicircle or two quarter quarters. Are installed before and after the pole and attached to the pole with fastening bolts and nuts. The antenna is mounted by providing a mounting arm or the like on the fastening piece. On the other hand, a PHS (simple mobile phone) base station is sometimes provided on a telephone pole to take advantage of the mobility, convenience, and low cost of the PHS. As shown in the schematic diagram of FIG. 8, when the control unit 42 and the antenna 31 are attached to the communication line power pole 40, a power arm 41 is provided on the power pole 40 by a dedicated band 43 to secure power supply, and the power transmission line 45 is connected. The power is supplied to the control unit 42 by connection.

[0003]

[Problems to be solved by the invention]

 Although not limited to the above PHS, when the electric power arm 41 and the like are already attached to the electric pole 40, the gap between the electric pole 40 and the electric power arm 41 and the like is only about 1 cm. For this reason, in the conventional band, the connecting portion between the arc main body and the fastening piece is obstructed, and cannot be inserted between the power arm 41 and the power pole 40, and the band 43 such as the power arm is separately provided. There is a problem that it takes time to loosen the gap and secure the gap before starting the mounting work. In addition, when the installation position of the antenna 31 of the conventional base station is increased in order to enrich the area of one base station, in addition to the problem of the band 43, the work itself of attaching the long antenna support to the mounting arm is also required. There is a demand for smooth operation from the viewpoint of safety. The present invention has been made in view of the above problems, and a first object of the present invention is to provide a power pole band that can be attached to a power pole without loosening a band such as a power arm already installed. . A second object is to provide an antenna mounting structure capable of safely and easily mounting a long antenna support by a smooth operation.

[0004]

[Means for Solving the Problems]

 In order to achieve the first object, a power pole band according to claim 1 comprises a main body in which a steel strip is formed in a substantially arc shape and a fastening piece continuously provided on both sides of the main body. , A rear band is disposed in front of and behind a utility pole, and the fastening piece is fastened and fixed by a fastening bolt and a nut. It is formed in a one-circle shape, and the other half is tangentially extended so as to be at an acute angle with respect to the center line of the approximately one-quarter circle, and a long hole is formed at an appropriate position on the whole. The fastening piece has a fastening hole at a substantially quarter circle side as a first fastening piece, a reinforcing rib at a portion connected to the main body, and a fastening piece at a side opposite to the second fastening piece. It has a hole. With the above configuration, the second fastening piece extending tangentially to the front and rear bands can be inserted into a small gap between the power pole and the already installed power arm or the like, and attached. There is no need to loosen the band.

In order to achieve the second object, the antenna mounting structure according to claim 2 includes: (1) a main body in which a steel strip is formed in a substantially arc shape, and a main body provided continuously on both sides of the main body. A front and rear band composed of fastening strips to be disposed before and after the pole, and the fastening strip is fastened and fixed by fastening bolts and nuts. Is formed in a substantially quarter circle shape in contact with the outer surface of the telephone pole, and the other half is tangentially extended so as to be at an acute angle with respect to the center line of the substantially quarter circle. An approximately quarter-circle side of the fastening piece is a first fastening piece having a fastening hole, a connecting portion with the main body is provided with a reinforcing rib, and an opposite side is provided with a second fastening piece. This is a utility pole band having a fastening hole with a fastening piece, and (2) a pipe material, one end of which has a cylindrical surface. A first through-hole for receiving a pole receiving piece having a U-shaped cross section that can be received and a first locking piece having the other end protruding upward, and for inserting a fixing bolt for fixing a post insertion portion to be described later. And the middle part overlaps the long hole of the front and rear bands and the tightening hole of the second tightening piece, and inserts the tightening bolt to fix it to the power pole band. An arm body and a fixing member for fixing the antenna support, having a plurality of second through holes that allow the antenna support to be inserted vertically and having an inner diameter that is loosely fitted to the outer diameter of the antenna support. A vertical pipe, one end of the arm body is held in a horizontal direction, and a push hole is provided at a position overlapping with the first through-hole, and is fixed to the arm body by a fixing bolt, and is connected to a side surface of the vertical pipe Having a pressing piece connected to the upper end of the pressing piece, and (3) an arm main body of the mounting arm between the front and rear bands of the power pole band; After the insertion, the tightening holes and the elongated holes are aligned with the second through holes, and the power pole band and the mounting arm are combined by the tightening bolts and nuts inserted into these holes. With the above configuration, the power pole band of claim 1 can be used to install the arm main body of the mounting arm at the installation position of the power arm of the power pole, etc., and fix the pole insertion portion to the antenna pole in advance on the ground. Temporarily fix it with a member, then raise the antenna column, engage the column insertion section with the arm body from above, fix the column insertion section to the arm body with fixing bolts, and permanently fix the antenna column with the fixing member. If so, the installation of the antenna is easily completed.

According to a third aspect of the present invention, there is provided a power pole band according to the third aspect, wherein the tightening bolt is a round head bolt and the tightening hole is rectangular. The acute angle forming the main body is about 30 degrees at the maximum. With the above configuration, in addition to the first aspect, it is possible to mount even if the gap between the power pole and the power arm is about 1 cm, and the insertion and tightening work is smoothly performed by the tightening bolts of the rounded round head bolts. Can be done. In order to achieve the second object, the antenna mounting structure according to claim 4 is different from claim 2 in that the tightening bolt of the power pole band and the fixing bolt of the mounting arm are square rooted round head bolts. The fastening hole is a rectangular hole, the acute angle forming the main body of the pole for a utility pole is at most about 30 degrees, the arm body of the mounting arm is a square pipe, The second through hole and the push hole are square, the vertical pipe of the support column insertion portion is a round pipe, and the fixing member is screwed. With the above configuration, in addition to the second aspect, the temporary fixing and the final fixing can be easily performed by the set screw.

[0007]

[Embodiment of the invention]

 Embodiments of an antenna mounting structure according to claims 2 and 4 will be described below with reference to FIGS. 1 to 5 using a telephone pole band according to claims 1 and 3. FIG. FIGS. 5A and 5B are an antenna mounting state diagram and an arrow view from the X direction, and show a state in which an antenna support is supported using two sets of upper and lower antenna mounting structures. This antenna mounting structure is a structure in which a power pole band 1 and a mounting arm 2 mounted on a power pole 40 mount an antenna support 32 having an antenna 31 on an upper end thereof to a support insertion portion 15 of the mounting arm 2. FIGS. 1 and 2 are a plan view and a front view, respectively, of a power pole band 1 having this antenna structure, and FIGS. 3 and 4 are a plan view and a front view of a mounting arm 2 having the antenna structure.

As shown in FIG. 1, the telephone pole band 1 is formed by a main body 3 in which a steel strip is formed in a substantially arc shape, and first and second fastening pieces 4 and 5 continuous on both sides of the main body 3. The front and rear bands 6 and 7 are arranged before and after the utility pole 40. The first and second fastening pieces 4 and 5 are fastened and fixed by a plurality of fastening bolts 8 and nuts 9. Reference numeral 10 denotes a washer for stably mounting the tightening bolts and nuts 8 and 9 in accordance with the inclination of the left portion 3b of the main body 3.

As shown in FIG. 1, the main body 3 is formed in a substantially quarter circle shape in which a right half 3 a of the half in the longitudinal direction is in contact with the outer surface of the telephone pole, and a left half 3 b of the other half is formed as described above. It is tangentially extended so that the angle θ is an acute angle of at most about 30 degrees with respect to the center line of the substantially quarter circle. In the present embodiment, about 20 degrees, which is a preferable angle θ in the range of about 30 degrees, is used. Here, the angles of about 30 degrees and about 20 degrees are not limited to exactly 30 degrees, but represent angles including an error of plus or minus 10%. As shown in FIG. 2, a plurality of long holes 11 are formed at arbitrary positions in the vicinity of the center and the left portion 3b to reduce the weight of the main body 3 and allow the fastening bolt 8 to be inserted.

The first tightening piece 4 is continuous with a substantially quarter circle side of the main body 3 and has a reinforcing rib 12 at a connection portion with the main body 3. The second fastening piece 5 is continuous with the left portion 3 b of the main body 3 on the opposite side of the first fastening piece 4. The height H of the bent portion between the second tightening piece 5 and the main body 3 (see FIG. 1) is set so that the main body 3 is formed in a shape that is connected to the second tightening piece 5 at an acute angle. It can be set smaller than a gap of about 1 cm between the power arm 40 and the power arm 41. As shown in FIG. 2, a square hole 13 as a fastening hole is formed in a square shape, and a fastening bolt 8 to be attached to the first and second fastening pieces 4 and 5 is inserted.

As shown in FIGS. 3 and 4, the mounting arm 2 includes an arm body 14 and a support column insertion portion 15 that can be separated from the arm body 14. The arm body 14 is a square pipe material, and has one end having a telescopic pole receiving piece 16 having a divergent U-shaped cross section capable of receiving the cylindrical surface of the electric pole 40, and the other end having a locking piece 17 projecting upward. Have. As shown in FIG. 4, a first through hole 19 is formed horizontally at the other end, and a fixing bolt 18 for fixing the column insertion portion 15 to the arm body 14 is inserted. A plurality of second rectangular through holes 20 for inserting the tightening bolt 8 are formed in an intermediate portion of the arm body 14. The second through holes 20 are provided at positions overlapping the square holes 13 and the elongated holes 11 of the second fastening pieces 5 of the front and rear bands 6 and 7, and are set on the utility pole 40. The arm body 14 of the mounting arm 2 is inserted between them, and is tightened and fixed by the tightening bolts 8 and the nuts 9 (see FIG. 5B).

As shown in FIG. 3 and FIG. 4, the support insertion portion 15 inserts the antenna support 32 in the vertical direction, and a vertical pipe 21 having an inner diameter that fits loosely with the outer diameter of the antenna support 32, and an arm main body. A push piece 22 for holding the tip of the pusher 14 from the horizontal direction and connecting to the side surface of the vertical pipe 21, and a locking piece 23 connected to the upper end of the push piece 22 and engaging with the locking piece 17 of the arm body 14. And The push piece 22 is provided with a push hole 25 at a position overlapping the first through hole 19 when the arm body 14 is held. The strut insertion portion 15 is fixed to the arm body 14 by inserting the fixing bolt 18 and tightening the nut. Further, a fixing screw 24 as a fixing member fixes the antenna support 32 to the vertical pipe 21 by screwing. Here, a female screw for the set screw 24 is cut in the vertical pipe 21 or the U-shaped piece. The fixing member is not limited to the set screw 24, but may be another fixing member (for example, a clip, an elastic material such as a rubber material alone or in combination of two or more types), or an adhesive.

The front and rear bands 6 and 7, the arm body 14, and the strut insertion portion 15 are made of a steel plate having good press workability (for example, a structural hot-rolled steel plate for automobiles), and are made of metal to prevent corrosion. A surface treatment (for example, hot-dip galvanizing or the like) is performed. For the tightening bolts 8 and the fixing bolts 18, round-headed round head bolts (equivalent to JIS B 1171) are used for convenience of installation. The convenience here is that when the bolt is inserted, the square root fits into the square hole and the bolt is pressed down, so that unnecessary bolt rotation is prevented and only the nut can be rotated to perform the tightening work. .

An antenna mounting operation of the antenna mounting structure having the above configuration will be described with reference to FIGS. 6 and 7. First, as shown in FIG. 6, even if the gap T between the power pole 40 and the power arm 41 is as small as about 1 cm, the bent portion between the main body 3 of the front and rear bands 6, 7 and the second fastening piece 5 is formed. Since the height H is low, the second fastening piece 5 can be inserted into the gap T from the direction of the arrow in the figure without loosening the band of the power arm 41, and can be easily attached. The arm body 14 of the mounting arm 2 is inserted between the front and rear bands 6 and 7, the second through hole 20 is aligned with the square hole 13 and the long hole 11, and tightened with the tightening bolt 8 and the nut 9. When fixed, the position of the mounting arm 2 on the utility pole 40 shown in FIG.

On the other hand, the column insertion portion 15 is temporarily fixed to a predetermined position of the antenna column 32 with a set screw 24 on the ground in advance. Then, the antenna pole 32 to which the pole insertion part 15 is temporarily fixed is raised to the position of the mounting arm 2 of the telephone pole 40, and as shown in FIGS. When the stopper pieces 17 and 23 are set so as to engage with each other, the first through holes 19 and the push holes 25 are aligned, the fixing bolts 18 are inserted and tightened. Installation work is completed easily and safely. In this way, even the attachment of the long antenna support 32 can be performed quickly, easily, and safely.

In the above-described embodiment, the inclination angle θ of the main body 3 of the front and rear bands 6 and 7 is set to 30 degrees or less. The acute angle θ can be adopted in accordance with the above. Further, the tightening bolt 8 and the like are not limited to the square root round head bolt, but other bolts such as a hexagonal bolt (JIS B 1180) can be adopted, and the advantages of various bolts can be utilized.

[0017]

[Effect of the invention]

 With the power pole band according to claims 1 and 3 configured as described above, the power pole band or the like that has already been installed can be attached to the power pole without loosening. Further, with the antenna structure according to the second and fourth aspects, a long antenna support can be safely and easily attached by a smooth operation.

[Brief description of the drawings]

FIG. 1 is a plan view of a telephone pole band.

FIG. 2 is a front view of the same.

FIG. 3 is a plan view of a mounting arm.

FIG. 4 is a front view of the same.

FIG. 5A is a front view of the mounting state of the antenna mounting structure, and FIG. 5B is a view as seen from the X direction.

FIG. 6 is an explanatory diagram illustrating attachment of front and rear bands to a utility pole.

FIG. 7A is a state diagram before the arm main body of the mounting arm and the column insertion portion are engaged, and FIG. 7B is a state diagram after both are engaged.

FIG. 8 is a schematic diagram showing a state in which a PHS antenna is mounted on a conventional telephone pole.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Power pole band 6, 7 Front and rear band 3 Main body 4, 5 First and second tightening pieces 8 Tightening bolt 2 Mounting arm 14 Arm main body 16 Utility pole receiving piece 1
7 Locking pieces 19, 20 First and second through holes 15
Post insertion part 18 Fixing bolt 21 Vertical pipe
22 Push piece 23 Lock piece 24 Set screw
25 Press hole

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Shigeru Kurihara 1-2-1 Shibaura, Minato-ku, Tokyo NTT Central Personal Communication Network Co., Ltd. (72) Inventor Yasuo Okamoto 1703 Matsuyama, Higashimatsuyama-shi, Saitama Kiya Corporation (72) Inventor Yoshikazu Iwamoto 1703 Matsuyama, Higashimatsuyama-shi, Saitama

Claims (4)

[Utility model registration claims] 1. A front and rear band comprising a main body in which a steel strip is formed in a substantially arc shape and tightening pieces continuously provided on both sides of the main body are disposed before and after a power pole. A power pole band for fastening and fixing an attachment piece with a tightening bolt and a nut, wherein the main body is formed in a substantially quarter circle shape in which about half of the longitudinal direction is in contact with the outer surface of the power pole, and the other half is substantially the same as that of the substantially four-quarter circle. It is tangentially extended so as to be at an acute angle with respect to the center line of the fraction circle,
An elongated hole is formed at an appropriate position on the whole, and the fastening piece has a fastening hole as a first fastening piece on a substantially quarter circle side, and a reinforcing rib at a connection portion with the main body. And the other side has a fastening hole with a second fastening piece. (1) A front and a rear band comprising a main body in which a steel strip is formed in a substantially arc shape and fastening pieces continuously provided on both sides of the main body are disposed before and after the electric pole. In a power pole band for tightening and fixing the tightening pieces with tightening bolts and nuts, the main body is formed in a substantially quarter circle shape in which about half of the longitudinal direction is in contact with the outer surface of the power pole, and the other half is formed. It is tangentially extended so as to be at an acute angle with respect to the center line of the substantially quarter circle,
An elongated hole is formed at an appropriate position on the whole, and the fastening piece has a fastening hole on a substantially quarter side of the first fastening piece, a reinforcing rib at a connection portion with the main body, and an opposite side. A side is a power pole band having a second fastening piece and a fastening hole,
(2) A pipe material, one end of which has a divergent U-shaped cross-section pole receiving piece that can receive the cylindrical surface of the pole, and the other end has a first locking piece protruding upward, which will be described later. A first through hole for inserting a fixing bolt for fixing the support column insertion portion is horizontally formed, and an intermediate portion overlaps with the long hole of the front and rear bands and the tightening hole of the second tightening piece. An arm body having a plurality of second through holes for inserting and fixing bolts to the power pole band, a fixing member for fixing the antenna support, and the antenna support is inserted in the vertical direction. A vertical pipe having an inner diameter that fits loosely with the outer diameter of the antenna support, and holds a first end of the arm body in a horizontal direction, and a push hole is provided at a position overlapping the first through-hole, and the fixing bolt is used. A push piece fixed to the arm body and connected to a side surface of the vertical pipe; (3) front and rear of the power pole band, comprising: a support post insertion portion connected to an upper end and having a second locking piece engaged with the first locking piece of the arm main body from above. By inserting the arm body of the mounting arm between the bands, aligning the tightening holes and the long holes with the second through holes, and using the tightening bolts and nuts inserted into these holes, the power pole An antenna mounting structure, wherein a band and the mounting arm are combined. 3. The bolt according to claim 1, wherein the tightening bolt is a square root round head bolt.
The telephone pole band according to claim 1, wherein the fastening hole is a square hole, and an acute angle forming the main body is at most about 30 degrees. 4. The power pole band fastening bolt and the mounting arm fixing bolt are square root round head bolts, and the fastening holes are rectangular square holes, forming a main body of the power pole band. The acute angle is at most about 30 degrees, the arm body of the mounting arm is a square pipe, and the first and second
The antenna mounting structure according to claim 2, wherein the through hole and the push hole are square, the vertical pipe of the support column insertion portion is a round pipe, and the fixing member is screwed.